package com.foruo.learn.designmode.interpret;

/**
 * 运算符 解释器 NonterminalExpression
 * @author GaoYuan
 * @date 2018/11/11 上午8:43
 */
public abstract class SymbolExpression extends Expression {

    /** 左结果 */
    protected Expression left;
    /** 右结果 */
    protected Expression right;

    public SymbolExpression(Expression left, Expression right) {
        this.left=left;
        this.right=right;
    }
}
